I'm trying to get the hard achievment.
I was in the space stars area, ran out of fuel.
It's been about 2000 miles and its still going on empty in the lower stratosphere.
Ugh.
ALL GAMES DO NOT NEED UPGRADES! WIPE THIS OF YOUR MINDS PEOPLE.
Maybe instead of changing the way the game is played, maybe scale the world as you get larger, maybe bigger enemies and bigger food?